(I work in a popular sandwich shop on the main strip of our town. Every once in a while, we run certain deals.)

Me: “Hey there! What can I make for you this evening?”

Customer: “I want a foot-long ham. That’s part of the deal, right?”

Me: “No, just [sub #1], [sub #2], and [sub #3].”

Customer: “Okay. I’ll get a meatball.”

Me: “That’s not one of the deals.”

Customer: “It’s fine, whatever.”

(I should note that our town has quite a few homeless people. Most of them are quite friendly and always come in and buy things. One of the nicer ones is drinking a coffee at the front of the store. I finish making the sandwich and ring the guy in.)

Me: “So that’ll be [price].”

Customer: “WHAT!? I don’t want it if it’s not part of the deal! You told me it was part of the deal!”

Me: “I told you explicitly that it was not part of the deal.”

Customer: “Well I don’t even want it!”

(The customer drops the sandwich on the counter, and I turn to the regular homeless man.)